Abul aaliyah rahimahullah said:“We used to consider that from the most gravest of sins is for…

Abul aaliyah rahimahullah said:

“We used to consider that from the most gravest of sins is for a person to learn the Quran and then sleep without reading anything from it.”

Az-zuhd of Imaam Ahmad (p. 303) by way of Rahban al-layl (343/1).